Manufacture of .alpha.-naphthol

Details Manufacture of .alpha.-naphthol Manufacture of .alpha.-naphthol

1978-02-10

1979-10-16

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 3908

Patent

active

041714598

ABSTRACT:
Process for the manufacture of .alpha.-naphthol by hydrolyzing .alpha.-naphthyl esters of aliphatic carboxylic acids in a distillation column by means of steam in counter-current at a particular temperature, and in a certain ratio, in the presence of organic sulfonic acids. The .alpha.-naphthol obtainable by the process of the invention is a valuable starting material for the manufacture of dyes, drugs and insecticides, e.g. .alpha.-naphthyl N-methylcarbamate.

REFERENCES:
patent: 2511467 (1950-06-01), Gresham
patent: 2639298 (1953-05-01), Head
patent: 3239572 (1966-03-01), Zinstag
patent: 3317593 (1967-05-01), Enk et al.

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